Re: [RFC PROTOTYPE] mm: reliable 1GB page allocation
From: Dev Jain
Date: Mon Oct 12 2026 - 01:38:50 EST
On 12/10/26 3:14 am, Rik van Riel wrote:
> On Sun, 2026-10-11 at 22:58 +0530, Dev Jain wrote:
>>
>>
>> On 04/10/26 11:06 am, Rik van Riel wrote:
>>>
>>> When the kernel free lists run low, the slow path moves pages and
>>> page
>>> blocks from inside mixed gigablocks onto the kernel free lists.
>>
>> Did you consider a design to introduce MIGRATE_POLLUTED: simply
>> have another migratetype which stores polluted pageblocks.
>> This idea can work in general, not sure how relevant it is
>> for gigablock concept.
>>
> Don't the first half a dozen or so changes from this
> prototype do that already?
>
> What differences do you have in mind?
Sorry, it was just a drive-by comment. I will eventually try to
review your design document.
>
>